BulletSim: Add physical 'actors' that operate on the physical object.

Add first 'actor' for locked axis.

1 files changed, 123 insertions, 0 deletions

diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSActors.cs b/OpenSim/Region/Physics/BulletSPlugin/BSActors.cs
new file mode 100755
index 0000000..b9b5ce1
--- /dev/null
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSActors.cs
@@ -0,0 +1,123 @@
+/*

+ * Copyright (c) Contributors, http://opensimulator.org/

+ * See CONTRIBUTORS.TXT for a full list of copyright holders.

+ *

+ * Redistribution and use in source and binary forms, with or without

+ * modification, are permitted provided that the following conditions are met:

+ *     * Redistributions of source code must retain the above copyright

+ *       notice, this list of conditions and the following disclaimer.

+ *     * Redistributions in binary form must reproduce the above copyrightD

+ *       notice, this list of conditions and the following disclaimer in the

+ *       documentation and/or other materials provided with the distribution.

+ *     * Neither the name of the OpenSimulator Project nor the

+ *       names of its contributors may be used to endorse or promote products

+ *       derived from this software without specific prior written permission.

+ *

+ * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY

+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED

+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE

+ * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY

+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;

+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND

+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS

+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

+ */

+using System;

+using System.Collections.Generic;

+using System.Text;

+

+namespace OpenSim.Region.Physics.BulletSPlugin

+{

+public class BSActorCollection

+{

+    private BSScene PhysicsScene { get; set; }

+    private Dictionary<string, BSActor> m_actors;

+

+    public BSActorCollection(BSScene physicsScene)

+    {

+        PhysicsScene = physicsScene;

+        m_actors = new Dictionary<string, BSActor>();

+    }

+    public void Add(string name, BSActor actor)

+    {

+        m_actors[name] = actor;

+    }

+    public bool RemoveAndRelease(string name)

+    {

+        bool ret = false;

+        if (m_actors.ContainsKey(name))

+        {

+            BSActor beingRemoved = m_actors[name];

+            beingRemoved.Release();

+            m_actors.Remove(name);

+            ret = true;

+        }

+        return ret;

+    }

+    public void Clear()

+    {

+        Release();

+        m_actors.Clear();

+    }

+    public bool HasActor(string name)

+    {

+        return m_actors.ContainsKey(name);

+    }

+    public void ForEachActor(Action<BSActor> act)

+    {

+        foreach (KeyValuePair<string, BSActor> kvp in m_actors)

+            act(kvp.Value);

+    }

+

+    public void Release()

+    {

+        ForEachActor(a => a.Release());

+    }

+    public void Refresh()

+    {

+        ForEachActor(a => a.Refresh());

+    }

+    public void RemoveBodyDependencies()

+    {

+        ForEachActor(a => a.RemoveBodyDependencies());

+    }

+}

+

+// =============================================================================

+public abstract class BSActor

+{

+    protected BSScene PhysicsScene { get; private set; }

+    protected BSPhysObject Prim { get; private set; }

+    protected bool Enabled { get; set; }

+    public string ActorName { get; private set; }

+

+    public BSActor(BSScene physicsScene, BSPhysObject pObj, string actorName)

+    {

+        PhysicsScene = physicsScene;

+        Prim = pObj;

+        ActorName = actorName;

+        Enabled = true;

+    }

+

+    // Return 'true' if activily updating the prim

+    public virtual bool isActive

+    {

+        get { return Enabled; }

+    }

+    // Turn the actor on an off.

+    public virtual void Enable(bool setEnabled)

+    {

+        Enabled = setEnabled;

+    }

+    // Release any connections and resources used by the actor.

+    public abstract void Release();

+    // Called when physical parameters (properties set in Bullet) need to be re-applied.

+    public abstract void Refresh();

+    // The object's physical representation is being rebuilt so pick up any physical dependencies (constraints, ...).

+    //     Register a prestep action to restore physical requirements before the next simulation step.

+    public abstract void RemoveBodyDependencies();

+

+}

+}